Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
20 1.4
GBP
|
1 8 7. 1
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
1 7. 7
GBP
|
1 1.0
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
3 9.1
GBP
|
35. 7
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
32,800,000
GBP
|
33,000,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
41,500,000
GBP
|
3 1.5
GBP
|
26,600,000
GBP
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
–
GBP
|
1 5.0
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
600,000
GBP
|
500,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
75,600,000
GBP
|
63,800,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
200,000
GBP
|
–
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
2,300,000
GBP
|
2,300,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
21 3.4
GBP
|
1 62.3
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of cash flow hedges |
200,000
GBP
|
–
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
350,000,000
GBP
|
3 0 7. 9
GBP
|
— |
| Liabilities |
1 15.2
GBP
|
1 03.8
GBP
|
— |
| Assets (liabilities) |
234,800,000
GBP
|
204,100,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1 14.4
GBP
|
1 00.8
GBP
|
— |
| Current liabilities |
90,800,000
GBP
|
7 2. 7
GBP
|
— |
| Assets less current liabilities [abstract] |